Question about Canon 400mm f4 Lens

Open Question

Focusing Unable to get sharp images even at moderate distance.

Posted by Anonymous on

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Why the picture is not clear when near to it


Do you mean that close-ups of objects are out of focus ? If so, this may be because you are closer than the lens's closest focusing distance.
If you mean that prints do not appear sharp, you may be suffering from camera shake, if you are using a long shutter speed, or if you are looking at a large print, or a portion of an image blown up, you may be closer than the optimum viewing distance.

Apr 23, 2016 | Cameras

2 Answers

Focusing problems


Hello Samaro,

This effect is produced when the tho sides of the binoculars are not focusing the same.
Since you sayit is present at long distance, it might be that one barrel is stuck and is not focusing the same as the otherone when you scroll the middle "focuser".

What you can do is open it up and try to clean it, also see if there is something, that is making one of the lenses not move forward as far as the other one.

Good luck,
Dahaka

Jul 28, 2008 | Fujinon CD Binocular

1 Answer

LG PF80G can not focus the entire image


If the unit is at a strong angle to the screen, you may need to reduce it. With the projector mounted high, the bottom of the screen is further away. The projector focuses the entire image the same and cannot compensate for the difference in distance.

Nov 08, 2013 | Office Equipment & Supplies

1 Answer

I have a Canon Powershot A630 that will not focus. I have it set on Auto and when I see the image, it is always blurry. I can't get the lens to focus. It goes in and out of focus and settles in bl


Hi!

Make sure your lens is clean and free of any smudges or debris.

Ensure that you are far enough away from your subject that the minimum focusing distance has been achieved

Most auto-focus systems use contrast to detect what needs to be sharp. If you are shooting something that is all the same color, the camera will probably not be able to focus.

Make sure there is plenty of light on the subject; even if to the naked eye it looks like there is light, the camera focus system will have a hard time detecting your subject if it is not extremely well lit.

Hope that helps!

Nov 02, 2012 | Canon PowerShot A630 Digital Camera

1 Answer

My FM10 focus screen does not focus, but split image works


I have seen bent mirrors and mis-aligned focus screens do this. It is possible for the film plane to be in focus while the viewfinder is out. you can test this with newspaper and a tape measure. buy a cheap roll of neg film and set up your camera on a tripod at a fixed distance, say 6ft. from the paper. Ideally I'd attach the paper to a light stand or the back of a chair. so that the paper is at 6ft, the back wall is at maybe 10ft. and there's something in the foreground in case its front focusing. then set the lens at what the scale says is 6ft regardless of what the viewfinder looks like. Shoot one frame with an aperture of f/2.8 on your 50mm. Shoot a second frame at f/16. rewind the film & develop it at a drug store or 1hr lab. if both images are sharp, the problem is in the mirror/ prism. if the 2.8 is OOF it's the mounting ring. I want you to shoot the F/16 to prove that the stop down lever is functioning.

Sep 21, 2009 | Nikon FM10 35mm SLR Camera

1 Answer

Olympus E520 Focus problem


will watch this post have same problem with focus especialiy indoor flash shots. a lot out of focus

May 30, 2009 | Olympus EVOLT E-510 Body Only Digital...

1 Answer

My ge easycam is all fuzzy and i caant seem to focus it


If you mean you tried the sharpness setting in the driver it will not help if the image is out of focus.

On many webcams there is a focus ring around the lens, try turning that to get a focus setting that gives a sharp image at the distance you use. If the product pic shown with your question represents your cam, it looks like it has such a focus ring.

Good luck!

May 26, 2009 | GE EasyCam Webcam

1 Answer

LCD screen not sharp / focusing when taking pictures


This camera is ancient by today's standards, at least 8 years old.

Your focus problem is that the back display is very low resolution, so it will never show a sharp image. 9MP should give a decent image when you view it on a computer. If not, you probably need to part with the camera. it is not worth much these days anyway.

May 01, 2017 | Canon Powershot SX110 IS Digital Camera...

Not finding what you are looking for?
Canon 400mm f4 Lens Logo

Related Topics:

14 people viewed this question

Ask a Question

Usually answered in minutes!

Top Canon Cameras Experts

kakima

Level 3 Expert

102366 Answers

TC CAMERA REPAIR.Com...

Level 2 Expert

169 Answers

old marine
old marine

Level 3 Expert

2012 Answers

Are you a Canon Camera Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...